Review of Yamaha RX-A770BL versus Sony STRZA1100ES will reveal the best features offered by the devices. According to the results of our review, Yamaha RX-A770BL received 8.1 points out of 10 possible, and Sony STRZA1100ES was rated 6.6 points. Both AV receivers were introduced in 2017. RX-A770BL is better suited for home theater use than the STRZA1100ES. Its sound profile is better balanced.
For the built-in amplifier, the devices received different marks - 8 and 7, respectively, on a 10-point scale.
The number of channels is equal to the number of possible connected speakers. Both receivers can handle the 7.2-channels configuration.
RMS stands for the actual power of the receiver. The higher this value, the louder the sound can be produced. The differences between the models in terms of RMS power are significant - for the RX-A770BL this value is 95/8 W/Ohm, and for the STRZA1100ES it is 70/8 W/Ohm.
|Stereo power (RMS), W/Ohm||95/8||70/8, 90/6|
|Output impedance, Ohm||8||8, 6|
|THD in stereo, %||0.06||0.09|
After reviewing the audio features of each model, we can rate the RX-A770BL 8 out of 10, and the STRZA1100ES - 7.
Most receivers now come with a microphone included. It is with the help of this microphone that the auto-calibration system functions, which adjusts the sound of the receiver to the room.
|Digital to analog converter (DAC)||Burr-Brown 192 KHz/24-bit||N/A|
|Pure direct (straight)||✔||✔|
|Auto speaker calibration||YPAO||DCAC EX|
|Speaker A/B switching||✖||✖|
|Other audio features||CINEMA DSP 3D, Compressed Music Enhancer, Virtual CINEMA FRONT, Extra Bass||Sound Optimize|
The connectivity of competitors in our comparison is markedly different, Yamaha RX-A770BL scored 8, and Sony STRZA1100ES scored 5 out of 10.
Wireless connection via Wi-Fi is possible only on the Yamaha RX-A770BL.
Bluetooth connection is now one of the main communication protocols for the receiver's control or even music broadcasting. Of the two receivers reviewed, only Yamaha RX-A770BL has a built-in Bluetooth.
DLNA is the perfect way to use your local cloud storage to stream movies and music directly to a TV. You can use the DLNA protocol only with Yamaha RX-A770BL.
|USB||1 (USB 2.0)||1 (USB 2.0)|
Now music streaming services are gaining more and more popularity. They allow users to listen to millions of songs by subscription.
|Apple Music (AirPlay)||AirPlay||✖|
|Other streaming services||Deezer, TIDAL, Pandora, Napster, SiriusXM||has not|
The presence of many connectors makes the receiver more versatile. But there are also narrowly targeted models, the number of connectors which are limited to a certain area of use. And when choosing their own receiver, users need to consider exactly your goals for using the receiver. For extensive connection, Yamaha RX-A770BL got 8 points, but Sony STRZA1100ES received 6 points.
Yamaha RX-A770BL is equipped with 6/1 HDMI inputs and outputs, and Sony STRZA1100ES has 5/2 HDMI inputs and outputs.
HDMI eARC is the next step in the development of audio return channel technology, which works in conjunction with HDMI 2.1. Using eARC provides the highest sound quality for home audio systems. HDMI eARC is available on Sony STRZA1100ES.
Connecting a vinyl player or phonograph is possible using a Phono input which is represented by mini-jack or RCA connectors. Only the RX-A770BL has a Phono interface.
|HDMI ARC (Audio Return Channel)||✔||✔|
|HDMI eARC (Enhanced Audio Return Channel)||✖||✔|
|Digital content protection (HDCP)||HDCP 2.2||HDCP 2.2|
|Subwoofer output (LFE)||2||2|
|Headphone output||1 x 6.3||1 x 6.3|
|Optical digital input||2||2|
|Coaxial digital input||2||1|
|Phono (MM) input||✔||✖|
|Front panel connectors||USB, HDMI, phones, setup mic, AUX||USB, setup mic|
|Multi channel preamp output||✖||✖|
The AV receiver is the heart of the home theater. And in this case, support for all current video formats ensures the best user experience, so it is very important to consider this when choosing a device. Video features of the RX-A770BL were rated 10 out of 10 against the 7 for the STRZA1100ES.
|HDR (High Dynamic Range)||HDR10||HDR10|
|4K signal pass-through||4K/60Hz||4K/60Hz|
|8K signal pass-through||✖||✖|
|HDMI signal pass-through||✔||✔|
|3D signal pass-through||✔||✔|
|HDMI pass-through in standby mode||✔||✔|
|Video conversion||analog to HDMI||✖|
|Analog to HDMI scaling||✔||✖|
|HDMI to HDMI scaling||✔||✔|
|Other video features||DeepColor, x.v.Color, HLG, BT.2020||HLG|
In terms of evaluating additional features, the RX-A770BL got 10 points, but the STRZA1100ES has 7.
Voice control allows you to control the basic functions of the receiver through a smartphone, smart speaker or using the microphone that comes with the kit. The RX-A770BL can be controlled by voice via Amazon Alexa. Only the Yamaha RX-A770BL has the ECO mode.
|Voice control||Amazon Alexa||✖|
|App control||iPhone, iPad, iPod, Android||iPhone, iPad, iPod, Android|
|Display||colour OSD||colour OSD|
|Tuner||AM, FM||AM, FM|
|Auto power off||✔||✖|
|Graphical user interface (GUI)||✔||✔|
|Firmware update||network, USB||network, USB|
|Other additional features||has not||has not|
As the center of a home media system, each multichannel receiver has an additional set of terminals for connecting the second set of speakers to create additional audio space in Zone 2 or even Zone 3 where audio can have the separate source.
|Zone audio output||speaker||speaker, preout|
|Zone HDMI output||✖||✔|
|Multi-room control||MusicCast, AV Controller||has not|
|Remote control input/output (IR)||1/1||1/2|
|DC trigger output (12V)||1||1|
For the ability to create multichannel surround sound, each of the receivers received 7 points out of 10.
IMAX Enhanced is a licensing and certification program under which home theater devices deliver crisp 4K HDR pictures and powerful sound as it was designed by the IMAX engineers. The STRZA1100ES licensed by IMAX.
|Dolby (other)||Dolby Digital Plus||Dolby Digital Plus|
|DTS HD Master||✔||✔|
|DTS (other)||DTS-EXPRESS, DTS Neo:6 Cinema, DTS Neo:6 Music||DTS-ES, DTS 96/24, DTS-HD|